Method of making boxes



Patented June 3, 1924.

UNITED STATES QFFICE.

LOUIS M. DANKLEFS AND FRED E. DANKLEFS, OF LQS ANGELES, CALIFORNIA.

NEIETHOD OX2 EIAKING BOXES.

Application filed June 26,

To all whom it may concern:

Be it known that LOUIS M. DANKLEFS and FRED E. DANKLEFS, citizens of theUnited States, residing at Los Angeles, in the county of Los Angeles andState of California, have invented certain new and useful Improvementsin Methods of Making Boxes, of which the following is a specification.

This invention relates to boxes having a bead at the upper edge of thebox proper, and a cooperating recess in the lower edge of the lid,adapted to be received over said bead for properly positioning the lidupon the box, the construction being particularly applicable to woodenboxes having hinged lids.

It is the object of the invention to provide correspondingly curvedsides upon the cooperating bead and recess of the box and lid, in orderthat the hinged lid may be swung to closed position without abutment ofsaid bead against the wall of said recess, and in order that thecorrespondingly curved sides of the bead and recess will lie against oneanother so as to form a snug fit when the. lid is closed.

It is a further object of the invention to provide a box having sidewalls interlocked at their ends, as for example by dove-tail joints,with the inner sides of said ends of the side walls cut at angles of 45,so that abutment of said angled ends at the corners of the box, willpositively square the structure.

It is a still further object of the invention to reduce the number ofparts in the improved box, by cutting the side walls thereof, so as toform the bead at the upper edge of the box proper as an integral part ofthe same.

It is a still further object of the invention to reduce to a minimum thenumber of operations in the manufacture of the improved box, by cuttingthe recess which is at the lower edge of the lid, in the strips fromwhich the. side walls of the box are to be constructed, then cutting theends of said strips so that they may be assembled to form the side wallsof the box, without said recesses extending through the interlockingends of said strips at the corners of. the box. and after fixing the topand bottom of the box upon the assembled side walls, cutting throughsaidwalls with a blade adapted to separate the lid from the box proper, and

1923; Serial No. 6475M.

at the same time form the bead at the upper edge of the latter.

It is a still further object of the invention to provide for cutting amolding upon the sides and top of the box during the operation ofcutting the lid from the box proper and forming the bead at the upperedge thereof.

The invention will be readily understood from the following descriptionof the accompanying drawings, in which:

is a vertical section through the cutting apparatus, showing the methodof forming the lid recesses in the strips from which the side walls ofthe box are constructed.

Fig. 2 is a fragmentary vertical section through the cutting apparatus,showing the method of cutting the ends of the recessed side strips.

Fig. 3 is a horizontal section through a corner of the assembled sidestrips.

Fig. 4 is a perspective view, partly broken away, showing the top andbottom of the box mounted on the assembled side strips, with the lidpartly cut from the box proper.

Fig. 5 is a vertical section through the cutting apparatus, showing theblade for cutting through the side walls of the as sembled box,

Fig. 6 is a vertical section through the box with the lid swung open.

Fig. 7 is a vieW similar to Fig. 5, showing a modified form of bladeadapted to cut a molding upon the box.

The improved box consists of a lid having side walls 1 and top 2, and abox proper having side walls 3 and bottom 4. The respective sides of thelid and box may be connected by dove-tail joints 5, and the lid ispreferably hinged to the box at one side thereof as shown at 6.

A. cooperating'bead and recess are formed at the upper edge of the boxand at the lower edge of the lid respectively, and are arranged topermit free swinging of the lid to closed position, while forming a snugfit when the lid is closed.

The apparatus employed in the manufacture of the improved box includesnovel cutting biades, which in the present instance Fig. 1

are shown as detachably mounted in a '10- tatable cutter head, said headbeing adjustable with relation to a support uponwhich The frame of theapparatus is shown as including a cylinder 7 having a work support 8mounted thereon. A rotatable shaft 9 extends through said cylinder andabove the work support, and is journaled in a bearing 10 adapted to beadjusted longitudinally of cylinder 7 and fixed in desired position by aset screw 11. The shaft may be rotated by any suitable means, shown as apulley 13 on said shaft, having a power belt it received thereon anddriven by a suitable source of rotary movement (not shown).

The shaft 9 has a threaded end 15 forming a shoulder 16 above the worksupport, and discs forming a cutter head 17 are received on the end ofthe shaft and are clamped against shoulder 16 by a nut 18. Theadjacentfaces of the discs are transversely slotted as shown at 19, and theshanks 20 of the various cutting blades are adapted to-be clamped insaid slots by tightening nut 18, with the cutting edges of the bladesprojecting radially beyond the cutter head.

In constructing the improved box, strips of material, preferably ofwood, which are of a lengthto form the sides of the box and lid, andwhich are of a width slightly greater than the combined height of sidewalls 1 and 3, are reccssed'along one of their sides by moving saidstrips along the rotatable cutter head 17 having the cutting blade shownin Fig. I mounted therein.

The recesses are formed at the desired height in the strips, by restingthe lower edges of said strips upon work support 8, the rotatable cutterbeing vertically adjusted relative to said work support, by longitudinally adjusting bearing 10 in cylinder 7. so that thelower side ofthe cut .will be spaced from the upper edge of the strips, the desiredwidth of side walls 1; and the depth of the cut is limited by abutmentof the strips of material against the periphery of cutter head 17, thcutting edges of the blade projecting beyond the cutter head so to outrecesses extending approximately half way through the strips.

The cutting blade shown in Fig. 1 has a straight cutting edge 21 at thebottom thereof parallel to the work support 8, and a convex cutting edgecurving upwardly and rearwardly from the front end of edge 4 21 so thatsaid blade will cut a recess in the strips of material having straightlower side 23 and concave upper sideQ l, as shown in Fig. 4. i

The ends of the recessed strips'ai'e then moved along the'cuttingapparatus with the blade shown in Fig. 2 mounted therein, said. blade having a 'cutt-ingedge 25 arranged at anangleof to the work support 8. Thenonj-recessed surfaces" of the strips rest upbn the work support, withthe cutter head vertically adjusted relative thereto, so

that cutting edge 25 will make a cut of 45, as shown a 26, in therecessed surfaces of the strips at the ends thereof, with said cutsextending into said strips only to the depth of the recesses previouslyformed therein.

The movement of the strips toward the cutter is suitably'limited so thatthe cutting edge 25 will inwardly space the angular cuts 26 from theends of the strips, a dis tance equal to the nonrecessed thickness ofsaid strips.

The ends of the strips extending beyond the angular cuts 26 which arethus formed in the inner surfaces of said strips, are then dovetailed inthe usual manner, and the .ps are assembled to form the side walls of arectangular box structure as shown in Fig. 3, with the dove-tailedendsin'terlocking to form joints 5 and the recessed sides ot the stripspositioned at the inside of the box.

The angular cuts 26 of the two strips cooperating to form a corner ofthe box will tflllS abut so as to square said corn'erpand the recessesin the strips at the inside of the box will 'not extend through thedove-tail joints 5 at the outer sides of. the corners of the box. i

When the side walls of the structure have been a sembled as thusdescribed, top 2'and bulton'i lare lixed thereon as. shown in Fig. i(lute are then made through the walls of the ho from the outsidethereof, by moving the box along cutter head 17 having the blade shownin Fig. '5 mounted therein.

This cutting blade has a straight upper cutting edge 2'7 parallel towork support 8, and a vertical cutting edge 28 depending for a shortdistance from the front end thereof, with a concave cutting edge 29spaced rearwardly from the front cutting edge at the lower side of theblade and curvingrearwardly and downwardly so as to terminate in arearwardly extending cut- 5 edge 30 parallel to cutting edge 27.

cut made by toe blade as thus dosvribed. may be properly positioned onthe walls of the box. by resting thebottom of the box u ")ll worksupport R during the cutting operation. and adjusting the cutter headrelative to the work support as previously described. the cutter headbeing so positioned that cutt ng edge 27 of the blade, will cut throughthe walls of the box at the lower edge of the recesses previously formedin the inner su f5 thereof.

The oepth of the cut is limited by the abutment of the sides of the boxagainst the periphery of cutter head 1", the cutting edges of the bladeprojecting beyond said cutter head to such a distance that" frontcutting edge 28 will cut all the way'through the walls of the box so asto separate the lid from the box proper, the cutting edge 27 making afinished cut upon the lower edge of the lid which is recessed at itsinner side by the concave surfaces 24.

At the same time cutting edge 27 cuts only part way through the walls ofthe box so as to form bead 31 having a convex surface at the innerportion of the upper edge of the box proper, and cutting edge 30 formsan olfset shoulder 32 in the outer portion of said upper edge of the boxproper at the base of the bead, as shown at the right of Fig. 4.

It will thus be seen that when the lid has been out from the box proper,the walls of the box and its lid are provided at their inner sides witha vertically alined cooperating bead and recess, and at their outer sidewith a cooperating shoulder and finished lower edge, the cutting bladeshaving their edges so arranged that said bead and recess will havecorresponding convex and concave surfaces, in order to provide a tightjoint when the lid of the box is closed, while permitting face swingingof said lid without abutment of the same against said bead.

After the lid has been cut from the box proper as thus described, it maybe hinged. thereto in usual manner to form the finished box shown inFig. 6.

In the modification of the invention illustrated in Fig. 7, the walls ofthe as sembled box structure are cut by a blade having cutting edges 27,28, 29, and 30, adapted to make a cut as previously described, and alsohaving cutting edges 33 and 34 at the rear ends of edges 27 and 30,respectively.

The cutting edges 33 and 34 are so shaped as to cut any desired moldingin the outer surfaces of the side walls and top of the box, at the sametime that the lid is cut from the box proper and the bead and shoulderare formed at the upper edge of the latter.

By this arrangement it will be seen that a molding may be out upon thebox without increasing the number of operations in the manufacturethereof.

We claim:

1. The method of constructing a container consisting of assembling aclosed structure adapted to form a box proper and its lid, and cuttingpart way'through the sides of said structure and all the way throughsaid sides at one edge of said partial cut at one operation, so to formseparated box proper and lid members having an offset bead as anintegral part of the edge of one of said separated members.

2. The method of constructing a container consisting of assembling aclosed structure adapted to form a box proper and its lid and having arecess in the inner faces of its sides, and cutting from the exterior ofsaid structure all the way through said sides at one edge of said recessand part way through said sides next to said severing cut and. beyondsaid recess at one operation, so as to form separated box proper and lidmembers having an inwardly offset bead as an integral part of the edgeof one of said members, and a recess in alinement with said bead in theedge of the other of said separated members.

3. The method of constructing a container consisting of cutting recessesin one side of strips of material, assembling said strips so as to formthe side walls for a box proper and its lid with said recesses in theinner faces ofsaid side walls, fixing a top and bottom on said sidewalls, and cutting into the outside of said side walls with the upperportion of said out extending through said side walls at the lower sidesof said recesses and the lower portion of said out extending below saidsevering cut and only part way into said side walls to a point invertical alinement with the bases of said recesses, so as to form aseparated box proper and lid members having an upstanding head as anintegral part of the inner side of the upper edge of the box proper, anda recess in vertical alinement therewith in the inner side of the loweredge of the lid, with an offset shoulder in the outer side of the upperedge of the box proper at the base of said bead and in verticalalinement with the outer side of the lower edge of the lid.

LThe method of constructing a container consisting of assembling aclosed structure adapted to form a box proper and its lid, and cuttingpart way through the sides of said structure and all the way throughsaid sides at one edge of said partial cut and also cutting a molding inthe surfaces of said sides at one operation, so as to form separated boxproper and lid members having molded surfaces and also having an offsetbead as an integral part at the edge of one of said separated memers.

In testimony whereof we have afiixed our signatures.

LOUIS M. DANKLEF'S. FRED E. DANKLEFS.

